1. 5/7 x 2 3/5 : 1,5 = ...

5/7 × 2 3/5 : 1,5

= 5/7 × 13/5 : 15/10

= 65/35 : 10/15

= 650/525

= 1 125/525

= 1 25/105

= 1 5/21

Semoga Membantu

[tex] \frac{5}{7} \times \frac{13}{5} \div \frac{15}{10} = \frac{13}{7} \times \frac{10}{15} = \frac{26}{21} atau 1 \frac{5}{21} [/tex]